Precious metal prices change every day so any answer posted here would be out of date almost immediately. While it's not normal WikiAnswers policy to say "use the internet", that's the best approach in this case. You can check a site such as www.kitco.com, CNNMoney, etc. for the latest prices.
Silver is currently valued at about $13.50 per ounce. A dealer will buy single ounce bars or rounds for about $10 or sell them for about $16.
Sell them on eBay. They are currently going for about $16 an ounce. Each silver coin is an ounce (should say 1 troy ounce, and .999 fine silver)
Silver is trading at about 28.50 an ounce. A half ounce of silver is worth about 14.25.
The value of one troy ounce of fine silver 999 from the Silver Trade Unit with Alaskan pipeline would depend on the current market price of silver. Silver prices fluctuate based on supply and demand in the market, so the value can vary each day.
The spot price of silver.
About $20 at current precious-metal prices
Silver is currently selling for about $17 an ounce. A dealer would sell this coin for about 10-15% over spot price or buy it about 10-15% below spot.
The current price of silver is about $14/oz.
uncirculated = $17proof = $50
No, it's not a fake, but it's not a coin, either. It's an ounce of silver bullion minted by a private manufacturer. See the Related Question "What is the value of one troy ounce of .999 fine silver?" for more information.
It is worth whatever 1 troy ounce of silver is worth. Today it is worth about $30, although the price of silver fluctuates.
One ounce of silver is about $32.00 at present. Most people will only want it for its silver value.